package com.mccken.designpattern.strategy.strategy_03;

/**
 * 促销策略抽象
 * 
 * @program: mccken-collect
 * @description:
 * @author: mccken
 * @create: 2024-01-14 20:17
 **/
public interface IPromotionStrategy {
	double doPromotion(double price);
}
